.main {
    /*width: 1920px;*/
    /*transform-origin: 0 0;*/
    /*overflow-x: hidden;*/
}
/*html::-webkit-scrollbar {display:none}*/

.main.my-set-gray{
    -webkit-filter: grayscale(100%);   
    -moz-filter: grayscale(100%);  
    -ms-filter: grayscale(100%);  
    -o-filter: grayscale(100%);  
    filter: grayscale(100%);  
    filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
}